نتایج جستجو برای: confinement pressure
تعداد نتایج: 426910 فیلتر نتایج به سال:
Confining sound is of significant importance for the manipulation and routing acoustic waves. We propose a Helmholtz resonator (HR) based subwavelength channel formed at interface two metamaterials, this purpose. The confinement quantified through (i) substantial reduction pressure, (ii) an increase in specific impedance (defined by ratio local pressure to velocity) - very large value outside c...
In the USA and Japan, an "innovative confinement concepts" program investigates alternatives to the large and expensive "tokamak" device for fusion energy. Compact toroids like spheromaks or FRCs are smaller and simpler, hence potentially more economical. Their study is uncovering some complex interaction between plasma flows and magnetic topology: e.g. flared magnetic flux tubes collimate into...
When red blood cells (RBCs) move through narrow capillaries in the microcirculation, they deform as they flow. In pathophysiological processes such as sickle cell disease and malaria, RBC motion and flow are severely restricted. To understand this threshold of occlusion, we use a combination of experiment and theory to study the motion of a single swollen RBC through a narrow glass capillary of...
Hydrogen, the simplest element in the universe, has a surprisingly complex phase diagram. Because of applications to planetary science, inertial confinement fusion and fundamental physics, its high-pressure properties have been the subject of intense study over the past two decades. While sophisticated static experiments have probed hydrogen's structure at ever higher pressures, studies examini...
بررسی تاثیر دو مانور ثبات دهنده شکمی (گود کردن و سفت کردن شکم) با استفاده از pressure biofeedback روی میزان فعالیت بدست آمده از سیگنال الکترومیوگرافی عضلات اکستانسور ناحیه کمری ـ لگنی در حین انجام اکستنشن هیپ در وضعیت دمر در زنان سالم و مبتلا به کمردرد مزمن غیر اختصاصی.
Poromechanics offers a consistent theoretical framework for describing the mechanical response of porous solids fully or partially saturated with a fluid phase. When dealing with fully saturated microporous materials, which exhibit pores of the nanometer size, aside from the fluid pressure acting on the pore walls additional effects due to adsorption and confinement of the fluid molecules in th...
Neutral particle behavior in the Large Helical Device heliotron has been investigated to conduct the effective particle control using the intrinsic helical divertor. The torus in–out asymmetry was observed in the neutral pressure distribution, and the degree of the asymmetry depends on the divertor particle flux distribution, and thus, on the operational magnetic configuration. This asymmetry w...
Herpes simplex virus type 1 (HSV-1) packages its micrometers-long double-stranded DNA genome into a nanometer-scale protein shell, termed the capsid. Upon confinement within the capsid, neighboring DNA strands experience repulsive electrostatic and hydration forces as well as bending stress associated with the tight curvature required of packaged DNA. By osmotically suppressing DNA release from...
LLE Review, Volume 104 169 Introduction The 60-beam, 30-kJ OMEGA Laser System1 studies the laserdriven direct-drive ignition approach to inertial confinement fusion (ICF) in which many individual high-power laser beams directly illuminate a spherical target to create a spherically symmetric implosion. Current designs for high-gain ICF targets include a layer of condensed hydrogen fuel that adhe...
Piezochromism describes a tendency of certain materials changing colors when they are subjected to various pressure levels. It occurs particularly in some polymers or inorganic materials, such as in palladium complexes. However, piezochromism is generally believed to work at high pressure range of 0.1-10 GPa. This research work focused on unique piezochromism responses of the nanometer voids fo...
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